Quick start
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Prepare CSV
First row is headers; comma-separated.
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Convert
Click convert to see JSON.
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Copy
Copy JSON output.
Paste CSV with a header row to convert locally to a JSON object array. Pairs with json-to-csv for spreadsheet-to-API workflows.
Privacy: processed locally, never uploaded.
↓ Paste in the input area below to see results instantly
Convert CSV (header row first) to a JSON array—pairs with json-to-csv. Runs locally.
Paste CSV with a header row to convert locally to a JSON object array. Pairs with json-to-csv for spreadsheet-to-API workflows.
Prepare CSV
First row is headers; comma-separated.
Convert
Click convert to see JSON.
Copy
Copy JSON output.
Quote fields with commas/newlines; escape quotes as doubled quotes.
1. Export CSV from Excel/database → 2. Open with text editor and copy content → 3. Paste into this tool → 4. Use generated JSON for API requests or scripts. No file upload needed - data is processed in browser memory and cleared when page closes.
Common dev scenarios: Convert customer list CSV to JSON for bulk user creation, or import product catalog to frontend apps. Supports nested JSON (use dotted column names like 'user.address.city'), but requires consistent CSV header formatting.
Input
name,tools A,1
Output
[{"name":"A","tools":"1"}] This is CSV→JSON; json-to-csv is the reverse.
Yes.
This tool requires headers in the first row. For headless CSV, either add temporary headers (e.g., col1,col2), or process programmatically: read as array using libraries like csv-parser, then convert manually.